Azure Fundamentals Certification Guide
·10 min read
Everything the AZ-900 exam covers — domains, format, cost and passing score — plus a study plan and practice-test strategy for Azure Fundamentals.
Continue readingA structured, week-by-week AZ-305 study plan covering all four design domains, the AZ-104 prerequisite, and milestones that tell you when you're ready.

A workable AZ-305 study plan divides Microsoft's four design domains — identity, governance and monitoring; data storage; business continuity; and infrastructure — into focused blocks, and spends most of its time converting the services you already administer into design decisions you can defend. This article lays out that plan week by week: what to study, in what order, with which official resources, and the milestones that tell you whether you are on track.
Two facts shape everything that follows. First, AZ-305 (Designing Microsoft Azure Infrastructure Solutions) is a design exam, not an implementation exam — it asks which solution fits a set of requirements, not how to click through deploying it. Second, the Azure Solutions Architect Expert certification has a hard prerequisite: you must hold the Azure Administrator Associate (AZ-104) certification, because passing AZ-305 alone does not award the expert credential. Your plan has to account for both.
AZ-305 assumes you can already operate Azure. Microsoft's expert-level positioning expects advanced experience across IT operations — networking, virtualisation, identity, security, business continuity, data platforms and governance — and the exam questions presume that vocabulary is second nature.
Run through this pre-flight checklist before committing to a start date:
If you're still weighing whether the expert credential justifies this effort at all, that value question has its own answer in Is the Azure Solutions Architect certification worth it?
Microsoft publishes no official study-hours figure for AZ-305, and any blog that promises "X hours guarantees a pass" is guessing. Preparation time depends almost entirely on how much architectural decision-making you already do at work.
This article uses an eight-week frame because it maps cleanly onto the four exam domains — roughly a fortnight each, with review woven through. Adapt it honestly:
The plan below assumes five to eight focused hours per week. Consistency beats volume: three ninety-minute sessions weekly will outperform one exhausted Saturday.
Each fortnight pairs one exam domain with a repeating rhythm: learn the design options, then interrogate them. For every service you study, force yourself to answer three questions — when would I choose this over its alternatives, what requirement rules it out, and what does it cost relative to those alternatives? That interrogation, not memorisation, is what AZ-305 rewards.
Start here because identity and governance decisions constrain every other design on the exam.
Milestone check: given a fictional company with three subsidiaries and separate compliance regimes, sketch a management group hierarchy and justify where policies and role assignments attach. If you can narrate the trade-offs aloud, move on.
This domain trips up operations-focused candidates because it demands comparative knowledge of services many administrators only touch occasionally.
Milestone check: write out, from memory, the storage redundancy options and the scenario that would justify each. Then pick any two database services and argue both sides of a migration decision between them.
The shortest domain on paper, but it punishes vague understanding, because every question hinges on precise requirements.
Milestone check: take three imagined workloads — a tolerant internal app, a customer-facing e-commerce platform, a regulated financial system — and assign each an availability and recovery design. If all three answers look the same, revisit the fortnight.
The broadest domain, and deliberately last: it draws on everything before it.
Reserve the final few days of week 8 for cross-domain integration. Real AZ-305 scenarios never sit inside one domain — a single case can touch identity, storage, resilience and networking at once — so close the plan by designing complete solutions end to end, not by rereading notes.
Keep the resource stack deliberately small. Architects fail AZ-305 from shallow coverage of many sources more often than from gaps in one good source.
What doesn't belong: question-memorisation sites and brain dumps. Beyond violating exam policies, they actively sabotage a design exam, where wording shifts between scenarios and memorised answers collapse. Practice questions used properly — to test reasoning and expose weak domains — are a different tool entirely; from week 5 onwards, work through AZ-305 practice questions after each domain block to confirm the material holds under exam-style pressure. How to sequence full mock exams, dissect case-study formats and read your scores belongs to its own playbook: see the AZ-305 practice test strategy.
Watching where other candidates' plans collapse is cheaper than repeating them.
If your worry is less about scheduling and more about whether the exam itself will be brutal, the difficulty question is examined separately in how hard is the Azure Solutions Architect exam?
Before you sit the exam, you should be able to tick every line below. Treat any unticked box as a targeted revision task, not a reason to restart the plan.
This roadmap deliberately covers one thing: how to organise AZ-305 preparation over time. The certification's full context — exam registration details, the expert credential's position in your career, and everything around the exam itself — lives in the complete Azure Solutions Architect certification guide, and the wider sequencing of Azure certifications before and after AZ-305 is mapped in the Azure certifications roadmap.
Your next concrete action costs nothing: download the current AZ-305 study guide, block out your first fortnight of identity and governance sessions, and put an exam date in the calendar for eight weeks out. A plan with a deadline is a plan that finishes.
Exam facts in this guide were checked against official certification-provider pages on . Fees, exam codes and policies change — confirm on the provider’s own site before you book.
Put it into practice
Reading about an exam only takes you so far. Work through practice questions for your certification and find the gaps before exam day does.
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Everything the AZ-900 exam covers — domains, format, cost and passing score — plus a study plan and practice-test strategy for Azure Fundamentals.
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A full AZ-104 exam guide for IT admins — the five domains, hands-on skills Microsoft expects, format, cost, renewal and a prep strategy that works.
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